Absconding renter (3-2-5)
I believe the answer is:
fly-by-night
(Other definitions for fly-by-night that I've seen before include "Cowboy" , "Unreliable, untrustworthy" , "Unreliable, shady" , "Unreliable - person who departs secretly to avoid debts" , "Untrustworthy person, likely to abscond" .)